Answer:
16.5
Step-by-step explanation:
Just put in the values of C and y first into the expression.
C = 4x + 5y
Put in values.
51 = 4x + 5(-3)
Evaluate.
51 = 4x + (-15)
Swap positions.
4x + (-15) = 51
Shift (-15) to the other side and change to (+15).
4x = 51 + 15
= 66
Find x.
x = 66 ÷ 4
x = 16.5
Answer:
c) 15m + 2n
Step-by-step explanation:
8m+4n+7m−2n
Combine like terms
8m+7m +4n−2n
15m +2n
Answer:
It's ratios. Comparisions I think
Step-by-step explanation:
The speed of the runner:Number of races she won- Positive
The size of the vehichle:Miles per Gallon of gas in the tank so how far it can travel- Negative
The number of the Telephones you own:Calls you recieve-Positive
Do you have another thing to show? Or is it just that?
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Answer:
<u>7y +2x</u>
Let x = the number of weeks
Hope this helps!
Answer:
x<20 ( Line under the "Less than sign")
Step-by-step explanation:
If Keith withdraws $25 every week, he will withdraw at most 20 weeks and he will have no money left.
So thats why the inequality ( in words) the amount of weeks that Keith will withdraw his money is less than or equal to 20.
Hope this helps.
Please consider this as brainliest, thanks.